Classification
380 - Commerce, communications & transportation
000 - Computer science, information & general works
356
600 - Technology
332
700 - The arts; fine & decorative arts
303
333 - Economics of land & energy
266
900 - History & geography
225
620 - Engineering & allied operations
215
363 - Other social problems & services
158
330 - Economics
151
610 - Medicine & health
112
140 - Specific philosophical schools
96
500 - Natural sciences & mathematics
93
580 - Plants (Botany)
87
320 - Political science
79
576 - Genetics & evolution
73
551 - Geology, hydrology & meteorology
70
340 - Law
55
370 - Education
54
300 - Social sciences
45
530 - Physics
43
540 - Chemistry & allied sciences
43
630 - Agriculture & related technologies
43
658 - General management
42
400 - Language
37
800 - Literature & rhetoric
37
414 - Phonology & phonetics
35
581 - Specific topics in natural history
28
720 - Architecture
28
304 - Factors affecting social behavior
24
612 - Human physiology
23
410 - Linguistics
21
100 - Philosophy & psychology
19
301 - Sociology & anthropology
9
200 - Religion
8
361 - Social problems & social welfare in general
8
615 - Pharmacology & therapeutics
8
780 - Music
8
550 - Earth sciences
6
657 - Accounting
6
170 - Ethics
5
297 - Islam, Babism & Bahai Faith
3
590 - Animals (Zoology)
3
791 - Public performances
3
364 - Criminology
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
336 - Public finance
1
350 - Public administration & military science
1
650 - Management & auxiliary services
1
920 - Biography, genealogy & insignia
1